Adaptivity (B) vs Blue Van Clef for Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Adaptivity (B)
Visualize how app layouts appear on various devices and adapt to different settings like orientation, multitasking, and text size changes. This free version offers essential tools for developers and designers to preview their work.
- Visualize layout sizes
- Display sizes in points or pixels
- Toggle status bar visibility
- Support for iPad multitasking
- Dark appearance support
- Force right-to-left layout
- Handoff actions
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Adaptivity is an invaluable tool for developers and designers. Use it to visualize how Size Classes and margins for layout, readable content and the safe area look on real devices and how they change with respect to orientation, iPad multitasking and Dynamic Type size changes. This free version has reduced features. TESTIMONIALS • “Adaptivity is not just highly recommended – it’s essential” — Paul Hudson, Hacking With Swift article “8 essential apps for iOS developers”, 30th March 2020. • “It's a very, very good tool as a reference for both developers and designers” — Gui Rambo, Stacktrace podcast episode #77, 1st April 2020. • “I'm not trying to spend your money, but to me this is a no-brainer” — Sean Allen YouTube video “Indie Dev Apps”, 12th April 2020. MAIN FEATURES • Visualize sizes for full view, layout margins, readable content guide and safe area layout guide. • Sizes displayed in points or pixels. • Regular or large navigation bar titles. • Toggle status bar and navigation bar/toolbar/tab bar visibility. • Activity View Controller for sharing a snapshot image of each view. • iPad multitasking (see note). • Dark appearance support (requires iOS/iPadOS 13 or later). • Setting to force right-to-left layout. • Handoff actions from Adaptivity (B) on one device to Adaptivity (A) on another. OTHER VIEWS • Popover, Form/Page Sheet, Full Screen and Automatic modal presentations. • Customise Sheet Presentations on iOS/iPadOS 15 or later. • Tab Bar Controller • Class style Split View Controller. • Dynamic Type styles for the current Content Size Category. The full version of the app, Adaptivity (A), includes many more features: • Table View Controller. • Double and triple column style Split View Controllers (requires iOS/iPadOS 14 or later). • Keyboard Dodging and Custom Keyboard. • Safe Area Layout Guide. • Explore Pointer Interactions (requires iPadOS 13.4 or later and a trackpad or mouse). • Explore System Colors. • Explore System Fonts. • Explore System Images (requires iOS/iPadOS 13 or later). Choose which SF Symbols data set to view, configure rendering modes and much more. • Explore System Materials (requires iOS/iPadOS 13 or later). • Keyboard shortcuts. • Keyboard navigation (requires iPadOS 15 or later). • Home Screen Quick Actions (requires iOS/iPadOS 13 or later). • Siri shortcut with custom response UI. • Handoff support. • External display support. • Pre- and post-iOS 14 style Widgets to show layout. • iOS 14 style Widgets to show random System Images. • iOS 14 style Widgets to show Dynamic Type text styles. • iOS 16 lock screen Widgets to show layout. • iOS 16 lock screen Widgets to show random System Images. • Notification Content Extension. • Watch App. • iMessage App. Note: Adaptivity (A) supports multiple windows on iPadOS 13 or later. On earlier iOS versions, Adaptivity (A) and (B) must be downloaded to run Adaptivity twice using iPad multitasking. Adaptivity (A) is a universal purchase and includes a Mac Catalyst version of the app. Buying one allows the other to be downloaded at no extra cost using the same Apple ID. Adaptivity (C) has the same reduced features as Adaptivity (B) but only supports iPhone. Use it to visualize how an iPhone‑only app appears on iPad. For more information see https://hacknicity.com/adaptivity
Blue Van Clef for Mobile
Explore Bluetooth Low Energy (BLE) devices by discovering their services, characteristics, and descriptors. This open-source tool respects accessibility features like VoiceOver and Dark Mode.
- BLE device discovery
- Service, characteristic, descriptor exploration
- Accessibility support (VoiceOver, Dark Mode)
- Open-source MIT license
- Bluetooth Framework integration
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Once connected to a device, you can do a "drill-down" discovery of the device's services, characteristics, and descriptors. The app is designed to respect Accessibility (VoiceOver and Increased Contrast), as well as Dark Mode. This is a 100% open-source app, with the code licensed as MIT. It uses the BlueThoth Framework (A Bluetooth SDK), which is also 100% open-source. The source repo for the app is: https://github.com/RiftValleySoftware/BlueVanClef The source repo for the BlueThoth Framework is: https://github.com/RiftValleySoftware/RVS_BlueThoth This is a page with some basic instructions for the app: https://riftvalleysoftware.com/bluevanclef/
Screenshots
Verdict
The clearest difference is iOS requirement: Adaptivity (B) at 11.0 against Blue Van Clef for Mobile's 13.0. On price, rating, ratings volume and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Adaptivity (B) holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 9 and 6 respectively.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | Adaptivity (B) | Blue Van Clef for Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (9 ratings) — better | 4.8 (6 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | 6 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 12 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Geoff Hackworth | Rift Valley Software, Inc. |
Customer experience
Adaptivity (B)
Blue Van Clef for Mobile
In-app purchases
Adaptivity (B)
No in-app purchases
Blue Van Clef for Mobile
No in-app purchases
Questions
Is Adaptivity (B) free?
Is Blue Van Clef for Mobile free?
Which has better reviews, Adaptivity (B) or Blue Van Clef for Mobile?
Do Adaptivity (B) or Blue Van Clef for Mobile have ads?
Which is updated more often, Adaptivity (B) or Blue Van Clef for Mobile?
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